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Added new CALLBACK_Audio_Device_GetSetInterfaceProperty() callback to the Audio Device Class driver.

This commit is contained in:
Dean Camera 2012-01-28 18:07:35 +00:00
parent dd312cead4
commit a147cee95f
6 changed files with 139 additions and 4 deletions
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34
Demos/Device/ClassDriver/AudioInput/AudioInput.c
View File

@ -186,7 +186,7 @@ void EVENT_USB_Device_ControlRequest(void)
* \param[in,out] Data Pointer to a location where the parameter data is stored for SET operations, or where
* the retrieved data is to be stored for GET operations.
*
* \return Boolean true if the property get/set was successful, false otherwise
* \return Boolean \c true if the property get/set was successful, \c false otherwise
*/
bool CALLBACK_Audio_Device_GetSetEndpointProperty(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo,
const uint8_t EndpointProperty,
@ -234,3 +234,35 @@ bool CALLBACK_Audio_Device_GetSetEndpointProperty(USB_ClassInfo_Audio_Device_t*
return false;
}
/** Audio class driver callback for the setting and retrieval of streaming interface properties. This callback must be implemented
* in the user application to handle property manipulations on streaming audio interfaces.
*
* When the DataLength parameter is NULL, this callback should only indicate whether the specified operation is valid for
* the given entity and should return as fast as possible. When non-NULL, this value may be altered for GET operations
* to indicate the size of the retreived data.
*
* \note The length of the retrieved data stored into the Data buffer on GET operations should not exceed the initial value
* of the \c DataLength parameter.
*
* \param[in,out] AudioInterfaceInfo Pointer to a structure containing an Audio Class configuration and state.
* \param[in] Property Property of the interface to get or set, a value from \ref Audio_ClassRequests_t.
* \param[in] EntityAddress Address of the audio entity whose property is being referenced.
* \param[in] Parameter Parameter of the entity to get or set, specific to each type of entity (see USB Audio specification).
* \param[in,out] DataLength For SET operations, the length of the parameter data to set. For GET operations, the maximum
* length of the retrieved data. When NULL, the function should return whether the given property
* and parameter is valid for the requested endpoint without reading or modifying the Data buffer.
* \param[in,out] Data Pointer to a location where the parameter data is stored for SET operations, or where
* the retrieved data is to be stored for GET operations.
*
* \return Boolean \c true if the property GET/SET was successful, \c false otherwise
*/
bool CALLBACK_Audio_Device_GetSetInterfaceProperty(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo,
const uint8_t Property,
const uint8_t EntityAddress,
const uint16_t Parameter,
uint16_t* const DataLength,
uint8_t* Data)
{
/* No audio interface entities in the device descriptor, thus no properties to get or set. */
return false;
}

32
Demos/Device/ClassDriver/AudioOutput/AudioOutput.c
View File

@ -271,3 +271,35 @@ bool CALLBACK_Audio_Device_GetSetEndpointProperty(USB_ClassInfo_Audio_Device_t*
return false;
}
/** Audio class driver callback for the setting and retrieval of streaming interface properties. This callback must be implemented
* in the user application to handle property manipulations on streaming audio interfaces.
*
* When the DataLength parameter is NULL, this callback should only indicate whether the specified operation is valid for
* the given entity and should return as fast as possible. When non-NULL, this value may be altered for GET operations
* to indicate the size of the retreived data.
*
* \note The length of the retrieved data stored into the Data buffer on GET operations should not exceed the initial value
* of the \c DataLength parameter.
*
* \param[in,out] AudioInterfaceInfo Pointer to a structure containing an Audio Class configuration and state.
* \param[in] Property Property of the interface to get or set, a value from \ref Audio_ClassRequests_t.
* \param[in] EntityAddress Address of the audio entity whose property is being referenced.
* \param[in] Parameter Parameter of the entity to get or set, specific to each type of entity (see USB Audio specification).
* \param[in,out] DataLength For SET operations, the length of the parameter data to set. For GET operations, the maximum
* length of the retrieved data. When NULL, the function should return whether the given property
* and parameter is valid for the requested endpoint without reading or modifying the Data buffer.
* \param[in,out] Data Pointer to a location where the parameter data is stored for SET operations, or where
* the retrieved data is to be stored for GET operations.
*
* \return Boolean \c true if the property GET/SET was successful, \c false otherwise
*/
bool CALLBACK_Audio_Device_GetSetInterfaceProperty(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo,
const uint8_t Property,
const uint8_t EntityAddress,
const uint16_t Parameter,
uint16_t* const DataLength,
uint8_t* Data)
{
/* No audio interface entities in the device descriptor, thus no properties to get or set. */
return false;
}

1
LUFA/DoxygenPages/ChangeLog.txt
View File

@ -15,6 +15,7 @@
* - Added support for the USB2AX boards, hardware revision 1-3
* - Added new Android Accessory Host class driver
* - Added new USB_Host_GetDescriptor(), USB_Host_GetDeviceConfiguration() and USB_Host_GetInterfaceAltSetting() functions
* - Added new CALLBACK_Audio_Device_GetSetInterfaceProperty() callback to the Audio Device Class driver
* - Library Applications:
* - Added User Application APIs to the CDC and DFU class bootloaders
* - Added INVERTED_ISP_MISO compile time option to the AVRISP-MKII clone project (thanks to Chuck Rohs)

5
LUFA/DoxygenPages/MigrationInformation.txt
View File

@ -22,6 +22,11 @@
* the Configuration descriptor's attributes field. As all devices are assumed to be bus-powered unless stated otherwise with the
* USB_CONFIG_ATTR_SELFPOWERED flag a replacement constant for bus powered devices is not provided.
*
* <b>Device Mode</b>
* - The device mode Audio class driver now requires a new user application callback, \ref CALLBACK_Audio_Device_GetSetInterfaceProperty().
* Existing applications must implement this new callback, however if no audio entities are defined in the audio device's descriptors,
* this function may be hard-coded to always return false for previous behaviour to be retained.
*
* \section Sec_Migration111009 Migrating from 110528 to 111009
* <b>Non-USB Library Components</b>
* - The \c JTAG_DEBUG_ASSERT() macro has been renamed \ref JTAG_ASSERT() to be consistent with \ref STDOUT_ASSERT().

38
LUFA/Drivers/USB/Class/Device/AudioClassDevice.c
View File

@ -44,7 +44,7 @@ void Audio_Device_ProcessControlRequest(USB_ClassInfo_Audio_Device_t* const Audi
if ((USB_ControlRequest.bmRequestType & CONTROL_REQTYPE_RECIPIENT) == REQREC_INTERFACE)
{
if (USB_ControlRequest.wIndex != AudioInterfaceInfo->Config.StreamingInterfaceNumber)
if ((USB_ControlRequest.wIndex & 0xFF) != AudioInterfaceInfo->Config.StreamingInterfaceNumber)
return;
}
else if ((USB_ControlRequest.bmRequestType & CONTROL_REQTYPE_RECIPIENT) == REQREC_ENDPOINT)
@ -107,6 +107,26 @@ void Audio_Device_ProcessControlRequest(USB_ClassInfo_Audio_Device_t* const Audi
EndpointControl, &ValueLength, Value);
}
}
else if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
{
uint8_t Property = USB_ControlRequest.bRequest;
uint8_t Entity = (USB_ControlRequest.wIndex >> 8);
uint16_t Parameter = USB_ControlRequest.wValue;
if (CALLBACK_Audio_Device_GetSetInterfaceProperty(AudioInterfaceInfo, Property, Entity,
Parameter, NULL, NULL))
{
uint16_t ValueLength = USB_ControlRequest.wLength;
uint8_t Value[ValueLength];
Endpoint_ClearSETUP();
Endpoint_Read_Control_Stream_LE(Value, ValueLength);
Endpoint_ClearIN();
CALLBACK_Audio_Device_GetSetInterfaceProperty(AudioInterfaceInfo, Property, Entity,
Parameter, NULL, NULL);
}
}
break;
case AUDIO_REQ_GetCurrent:
@ -129,6 +149,22 @@ void Audio_Device_ProcessControlRequest(USB_ClassInfo_Audio_Device_t* const Audi
Endpoint_ClearOUT();
}
}
else if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
{
uint8_t Property = USB_ControlRequest.bRequest;
uint8_t Entity = (USB_ControlRequest.wIndex >> 8);
uint16_t Parameter = USB_ControlRequest.wValue;
uint16_t ValueLength = USB_ControlRequest.wLength;
uint8_t Value[ValueLength];
if (CALLBACK_Audio_Device_GetSetInterfaceProperty(AudioInterfaceInfo, Property, Entity,
Parameter, &ValueLength, Value))
{
Endpoint_ClearSETUP();
Endpoint_Write_Control_Stream_LE(Value, ValueLength);
Endpoint_ClearOUT();
}
}
break;
}

33
LUFA/Drivers/USB/Class/Device/AudioClassDevice.h
View File

@ -147,14 +147,43 @@
* \param[in,out] Data Pointer to a location where the parameter data is stored for SET operations, or where
* the retrieved data is to be stored for GET operations.
*
* \return Boolean true if the property get/set was successful, false otherwise
* \return Boolean \c true if the property GET/SET was successful, \c false otherwise
*/
bool CALLBACK_Audio_Device_GetSetEndpointProperty(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo,
const uint8_t EndpointProperty,
const uint8_t EndpointAddress,
const uint8_t EndpointControl,
uint16_t* const DataLength,
uint8_t* Data);
uint8_t* Data) ATTR_NON_NULL_PTR_ARG(1);
/** Audio class driver callback for the setting and retrieval of streaming interface properties. This callback must be implemented
* in the user application to handle property manipulations on streaming audio interfaces.
*
* When the DataLength parameter is NULL, this callback should only indicate whether the specified operation is valid for
* the given entity and should return as fast as possible. When non-NULL, this value may be altered for GET operations
* to indicate the size of the retreived data.
*
* \note The length of the retrieved data stored into the Data buffer on GET operations should not exceed the initial value
* of the \c DataLength parameter.
*
* \param[in,out] AudioInterfaceInfo Pointer to a structure containing an Audio Class configuration and state.
* \param[in] Property Property of the interface to get or set, a value from \ref Audio_ClassRequests_t.
* \param[in] EntityAddress Address of the audio entity whose property is being referenced.
* \param[in] Parameter Parameter of the entity to get or set, specific to each type of entity (see USB Audio specification).
* \param[in,out] DataLength For SET operations, the length of the parameter data to set. For GET operations, the maximum
* length of the retrieved data. When NULL, the function should return whether the given property
* and parameter is valid for the requested endpoint without reading or modifying the Data buffer.
* \param[in,out] Data Pointer to a location where the parameter data is stored for SET operations, or where
* the retrieved data is to be stored for GET operations.
*
* \return Boolean \c true if the property GET/SET was successful, \c false otherwise
*/
bool CALLBACK_Audio_Device_GetSetInterfaceProperty(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo,
const uint8_t Property,
const uint8_t EntityAddress,
const uint16_t Parameter,
uint16_t* const DataLength,
uint8_t* Data) ATTR_NON_NULL_PTR_ARG(1);
/** Audio class driver event for an Audio Stream start/stop change. This event fires each time the device receives a stream enable or
* disable control request from the host, to start and stop the audio stream. The current state of the stream can be determined by the